Evaporative Loss From External F:loating-Roof Tanks API PUBLICATION 2517 THIRD EDITION, FEBRUARY 1989 lp American Petroleum InsCltute 1220 L Slreet,orthweSI wa,",'gtoo D.C 2001lS Evaporative Loss From External Floating-Roof Tanks Measurement Coordination, Departme'n t API PUBLICATION 2517 THIRD EDITION, FEBRUARY 1989 Ame.rican Petroleu m rn,stitute 1) SPECIAL NOTeS API PUBLICATIONS NECESSARILY ADDRESS PROBLEMS OF A GENERAL NATURE WITH RESPECT TO PARTICULAR CIRCUMSTANCES, WCAL, STATE AND FEDERAL LAWS AND REGULATIONS SHOULD BE REVIEWED API IS NOT UNDERTAKJ G TO MEET THE DUTIES OF EMPLOYERS , MANUFACTURERS, OR SUPPLIERS TO WARN A D PROPERLY TRAJ AND EQUIP THEIR EMPLOYEE , AND OTHERS EXPOSED, CON- CERNI G MEA ' TH A , D SAFET RISKS A D PRECAUTIONS, NOR UNDERTAKI G THEIR OBLIGATIONS UND · R 1.0 AL STATE OR FEDERAL LAWS INFORMATJO CONCERNING SAFETY AND HEALTH RISKS AND PROPER PRECAUTIONS WITH RESPECT TO PAR ICULAR MATERIALS AND CO DITIONS SHOULD BE OBTAINED FROM THE EMPLOY ER THE MANUFACTURER OR SUPPLIE R OF THAT MA: E RIAL , OR THE MATE.RIAL SAFETY DATA SHEET NOTHING CONTAI ED I AY API PUB ICATION IS TO BE CONSTRUED AS GRAN I G ANY RIGHT, BY IMPLICATION OR OTHE RWISE OR THE MANUFACTU RE, SA E OR USE OF ANY METHOD , APPARATUS OR PRODUCT COVERED BY LETTERS PATENT NEITHER SHOULD ANYTHING CONTAINED I THE PUBUCATIO BE CONSTRUED AS INSURING ANYONE AGAINST LIABILITY FOR INFRINGEMENT OF LETTERS PATENT S GE ERALLY , API STA DARD ARE REVIEWED AND REVISED , REAFfIRMED OR WITHDRAWN AT LEAST EVERY F1 VE YEARS SOMETIMES A ONE-TIME EXTENS]ON OF UP TO TWO YEARS WILL BE ADDED TO THIS REVIEW CYCLE mIS PUBLICATION WILL NO LONGER BE IN EFFECT FIVE YEARS AFTER ITS PUBLICATION DATE AS AN OPERATIVE API STANDARD OR, WHERE AN EXTENSION HAS BEEN GRANTED , UPON REPUBLICATION STAT S OF THE PUBLICATION CA BE ASCERTAINED FROM THE API AUTHOR] G DEPARTME T [TELEPHO E (202) 682-8000) A CATALOG OF API PUB ICAT ONS AND MATERIA SIS p BUSHE D ANNUALLY A D UPDATED QUARTERLY BY API 1220 L STREET N.W., WASHJ oro , D.C 20005 Copyright © 1989 Amlrrican P,l.troklum llis.titutol FOREWORD [n 1957, the API Evaporation Loss Committee initiated an extensive effort to collect available petroleum industry data on evaporative losses from e·xte.rnal fioati.ng-roof tank s An intensive study was made of tb ese data and resulted in correlations for estimating evaporative losses from external floating-roof tanks These results were publhhed in February 1962 as API Publication 2517 By the rnid-197Os, a.s a result of tbe national energy crisis and increased concern for the environmen t additional emphasis was pJace